Improvement in seed-planters



UNITED STATES PATENT OFFICE.

S. L. STOCKSTILL, 0F MEDVVAY, OHIO.

IMPROVEMENT I SEED-PLANTERS.

Specification forming part of Letters Patent No. 24,158, dated May 24,1859.

To all 'whom fit may concern:

Beit known that I, STEPHEN L. SrocKs'rrLL, otMed way, Clarke county,Ohio, have invented new and useful Improvements in Seeding-'Machines;and I hereby declare the following to be a full and exact -descriptionof the same, reference bein ghad to the accompanying drawings, makingpart of this specification.

The said invention consists in an 'improved arrangement fol adjustingthe drill-tooth.

In theaccompanyingdrawings, Figure l represents a vertical section ofthe machine parallel with the line of draft, andv Fig. 2 a perspective-view of the scorer and a portion of the drag-bar.

A Ais the frame ofthe machine, supported on wheels B.

C is the seed-box, having apertures c in its bottom, through which theseed flows into tubes l), by which it is conveyed to the teeth E- Fis ahorizontal shaft,journaled within the seed-box and extending from end toend of the same.

G are segmental rockers mounted on the d shaft F, and corresponding withthe apertures c in number and position. rIhe rockers Gare furnished withcavities g in their peripheries, by means of which cavities the grain isforwarded to the apertures c in large or small quantities, accordinglyas the motion of the rocker is adjusted in extent. A simultaneous motionis imparted to the rockers by means of an arm, H, extending upward fromthe shaft F, and communicating by means of a rod, I, with the upper endot' a level', J, which is pivoted to theframe of the machine at j, andprovided at its lower end with a stud, which engages in a suitablezigzag groove, b, in the drivewheel B. vThe delivery ot' seed isregulated in extent by connecting the rod I with either ofy the holes iin the lever J which may be desired. K are the drag-bars, attached at kto the frame of the machine, and at their rear ends pivoted at m betweencheeks or jaws L, attached to the upper part ot' the teeth or scorers E.The front part of thejaws L is in the form ofan arc concentric with thepivot m, and is furnished with notches Z, which are consequentlyequidistant from the pivot m.

ing in positionpwith the notches l, in which hole a wooden pimp, beinginserted, engages with one or other of the notches l, and thereby firmlyholds the tooth E atany desired angle with the drag-bar. Thisarrangement affords a method of adjusting the 'angle'of the teeth E withgreaterfacility than any other plan of permanentadjustmentwith which Iamacquainted.

The pin p is made of wood, in order that itmay give way in the event ofanystrain occur'- ring, which would otherwise result in serious damageto. the machine.

I am aware that drill-teeth have been constructed with cheeks or flangesperforated collcentrically with the pivot of the drag-bar, so

as to correspond with a common perforation in set my hand.

S. L. STOGKSTILL.

Attest:

JAMES S'rocKsTrLL, F. P. GUPPY.

The drag bar is furnished with a hole correspond l

